docs: def transfer(self, receiver_address, amount, from_account):
          """
          Transfer tokens from one account to the receiver address.
  
          :param receiver_address: Address of the transfer receiver, str
          :param amount: Amount of tokens, int
          :param from_account: Sender account, Account
          :return: bool
          """
          tx_hash = self.send_transaction(
              'transfer',
              (receiver_address,
               amount),
              transact={'from': from_account.address,
                        'passphrase': from_account.password}
          )
          return self.get_tx_receipt(tx_hash).status == 1